function chartInit3() {
  var chartDom = document.getElementById('echarts3');
  var myChart = echarts.init(chartDom);
  var option;
  let seriesList = [
    {
      type: 'bar',
      label: {
        show: true,
        position: 'top',
        color: '#ffffff'
      },
      barWidth: 10,
      barGap: '130%',
      itemStyle: {
        color: '#B5CCFF',
        barBorderRadius: [50, 50, 0, 0]
      }
    },{
      type: 'bar',
      label: {
        show: true,
        position: 'top',
        color: '#ffffff'
      },
      barWidth: 10,
      barGap: '130%',
      itemStyle: {
        color: function (item) {
          if (item.name === '我的') {
            return '#ffaa05'
          } else {
            return '#6492FF'
          }
        },
        barBorderRadius: [50, 50, 0, 0]
      },
      markLine: {
        lineStyle: {
          color:  '#ffaa05',
          type: 'dashed'
        },
        silent: true,
        label: {
          show: false
        },
        symbol: ['circle', 'circle'],
        data: [{
          yAxis: 66
        }]
      }
    }
  ]

  option = {
    color: [
      '#6492FF', '#6492FF', '#6492FF', '#6492FF', '#6492FF'
    ],
    legend: {
      bottom: 0
    },
    grid: {
      top: 20,
      bottom: 50,
      right: 15
    },
    dataset: {
      source: [
        ['product', '本科', '专科', '我的'],
        ['2017', 83.1, 73.4],
        ['2018', 83.1, 73.4],
        ['2019', 86.4, 65.2],
        ['我的', , 66]
      ]
    },
    xAxis: {
      type: 'category',
      axisLine: {
        lineStyle: {
          color: '#b4cbff'
        }
      }
    },
    yAxis: {
      axisLine: {
        lineStyle: {
          color: '#b4cbff'
        }
      },
      splitLine: {
        lineStyle: {
          color: '#b4cbff'
        }
      },
    },
    series: seriesList
  }

  myChart.setOption(option);
}